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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef REMOTING_HOST_WIN_UNPRIVILEGED_PROCESS_DELEGATE_H_
      6 #define REMOTING_HOST_WIN_UNPRIVILEGED_PROCESS_DELEGATE_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "base/compiler_specific.h"
     10 #include "base/files/file_path.h"
     11 #include "base/memory/ref_counted.h"
     12 #include "base/memory/scoped_ptr.h"
     13 #include "base/threading/non_thread_safe.h"
     14 #include "base/win/scoped_handle.h"
     15 #include "ipc/ipc_listener.h"
     16 #include "remoting/host/win/worker_process_launcher.h"
     17 
     18 namespace base {
     19 class CommandLine;
     20 class SingleThreadTaskRunner;
     21 } // namespace base
     22 
     23 namespace IPC {
     24 class ChannelProxy;
     25 class Message;
     26 } // namespace IPC
     27 
     28 namespace remoting {
     29 
     30 // Implements logic for launching and monitoring a worker process under a less
     31 // privileged user account.
     32 class UnprivilegedProcessDelegate
     33     : public base::NonThreadSafe,
     34       public IPC::Listener,
     35       public WorkerProcessLauncher::Delegate {
     36  public:
     37   UnprivilegedProcessDelegate(
     38       scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
     39       scoped_ptr<base::CommandLine> target_command);
     40   virtual ~UnprivilegedProcessDelegate();
     41 
     42   // WorkerProcessLauncher::Delegate implementation.
     43   virtual void LaunchProcess(WorkerProcessLauncher* event_handler) OVERRIDE;
     44   virtual void Send(IPC::Message* message) OVERRIDE;
     45   virtual void CloseChannel() OVERRIDE;
     46   virtual void KillProcess() OVERRIDE;
     47 
     48  private:
     49   // IPC::Listener implementation.
     50   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
     51   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
     52   virtual void OnChannelError() OVERRIDE;
     53 
     54   void ReportFatalError();
     55   void ReportProcessLaunched(base::win::ScopedHandle worker_process);
     56 
     57   // The task runner serving job object notifications.
     58   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
     59 
     60   // Command line of the launched process.
     61   scoped_ptr<base::CommandLine> target_command_;
     62 
     63   // The server end of the IPC channel used to communicate to the worker
     64   // process.
     65   scoped_ptr<IPC::ChannelProxy> channel_;
     66 
     67   WorkerProcessLauncher* event_handler_;
     68 
     69   // The handle of the worker process, if launched.
     70   base::win::ScopedHandle worker_process_;
     71 
     72   DISALLOW_COPY_AND_ASSIGN(UnprivilegedProcessDelegate);
     73 };
     74 
     75 }  // namespace remoting
     76 
     77 #endif  // REMOTING_HOST_WIN_UNPRIVILEGED_PROCESS_DELEGATE_H_
     78